package com.atguigu.gulimall.order.service.impl;

import com.atguigu.gulimall.order.entity.OrderEntity;
import com.atguigu.gulimall.order.entity.OrderReturnReasonEntity;
import com.rabbitmq.client.Channel;
import org.springframework.amqp.core.Message;
import org.springframework.amqp.core.MessageProperties;
import org.springframework.amqp.rabbit.annotation.RabbitHandler;
import org.springframework.amqp.rabbit.annotation.RabbitListener;
import org.springframework.stereotype.Service;
import java.util.Map;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.atguigu.common.utils.PageUtils;
import com.atguigu.common.utils.Query;

import com.atguigu.gulimall.order.dao.OrderItemDao;
import com.atguigu.gulimall.order.entity.OrderItemEntity;
import com.atguigu.gulimall.order.service.OrderItemService;


@Service("orderItemService")
@RabbitListener(queues = {"hello-java-queue"})
public class OrderItemServiceImpl extends ServiceImpl<OrderItemDao, OrderItemEntity> implements OrderItemService {

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<OrderItemEntity> page = this.page(
                new Query<OrderItemEntity>().getPage(params),
                new QueryWrapper<OrderItemEntity>()
        );

        return new PageUtils(page);
    }

    /**
     * queues：声明所有需要监听的队列
     */
//    @RabbitListener(queues = {"hello-java-queue"})
    @RabbitHandler
    public void receiveMessage(Message message, OrderReturnReasonEntity content, Channel channel) throws InterruptedException {

        System.out.println("接收到消息。。。" + content);
        byte[] body = message.getBody();
        // 消息头属性信息
        MessageProperties properties = message.getMessageProperties();
//        Thread.sleep(3000);
        System.out.println("消息处理完成->" + content.getName());
        // channel内自增的
        long deliveryTag = message.getMessageProperties().getDeliveryTag();
        System.out.println("deliveryTag" + deliveryTag);
        // 非批量模式
        try {
            if (deliveryTag % 2 == 0) {
                channel.basicAck(deliveryTag, false);
                System.out.println("ack确认" + deliveryTag);
            } else {
                // 消息处理不了，使用nack()
                channel.basicNack(deliveryTag, false, true);
                System.out.println("没有ack确认" + deliveryTag);
            }
        } catch (Exception e) {
            // 网络中断
        }
    }

    @RabbitHandler
    public void receiveMessage2(OrderEntity content) throws InterruptedException {

        System.out.println("接收到消息。。。" + content);
    }

}